grunt

dist/css/bootstrap.css

@@ -3822,6 +3822,9 @@ select[multiple].input-group-sm > .input-group-btn > .btn {
   right: 0;
   left: 0;
   z-index: 1030;
+  -webkit-transform: translate3d(0, 0, 0);
+       -o-transform: translate3d(0, 0, 0);
+          transform: translate3d(0, 0, 0);
 }
 @media (min-width: 768px) {
   .navbar-fixed-top,
@@ -5315,16 +5318,14 @@ button.close {
   -webkit-transition: -webkit-transform .3s ease-out;
        -o-transition:      -o-transform .3s ease-out;
           transition:         transform .3s ease-out;
-  -webkit-transform: translate(0, -25%);
-      -ms-transform: translate(0, -25%);
-       -o-transform: translate(0, -25%);
-          transform: translate(0, -25%);
+  -webkit-transform: translate3d(0, -25%, 0);
+       -o-transform: translate3d(0, -25%, 0);
+          transform: translate3d(0, -25%, 0);
 }
 .modal.in .modal-dialog {
-  -webkit-transform: translate(0, 0);
-      -ms-transform: translate(0, 0);
-       -o-transform: translate(0, 0);
-          transform: translate(0, 0);
+  -webkit-transform: translate3d(0, 0, 0);
+       -o-transform: translate3d(0, 0, 0);
+          transform: translate3d(0, 0, 0);
 }
 .modal-dialog {
   position: relative;
@@ -5910,6 +5911,9 @@ button.close {
 }
 .affix {
   position: fixed;
+  -webkit-transform: translate3d(0, 0, 0);
+       -o-transform: translate3d(0, 0, 0);
+          transform: translate3d(0, 0, 0);
 }
 @-ms-viewport {
   width: device-width;

dist/js/bootstrap.js

@@ -1081,10 +1081,13 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
 
     if ($this.is('a')) e.preventDefault()
 
-    Plugin.call($target, option, this)
-    $target.one('hide.bs.modal', function () {
-      $this.is(':visible') && $this.trigger('focus')
+    $target.one('show.bs.modal', function (showEvent) {
+      if (showEvent.isDefaultPrevented()) return  // only register focus restorer if modal will actually get shown
+      $target.one('hidden.bs.modal', function () {
+        $this.is(':visible') && $this.trigger('focus')
+      })
     })
+    Plugin.call($target, option, this)
   })
 
 }(jQuery);
@@ -1236,8 +1239,9 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
     if (this.hasContent() && this.enabled) {
       this.$element.trigger(e)
 
-      if (e.isDefaultPrevented()) return
-      var that = this;
+      var inDom = $.contains(document.documentElement, this.$element[0])
+      if (e.isDefaultPrevented() || !inDom) return
+      var that = this
 
       var $tip = this.tip()
 
@@ -1676,20 +1680,17 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
   // ==========================
 
   function ScrollSpy(element, options) {
-    var href
     var process  = $.proxy(this.process, this)
 
-    this.$element       = $(element).is('body') ? $(window) : $(element)
     this.$body          = $('body')
-    this.$scrollElement = this.$element.on('scroll.bs.scrollspy', process)
+    this.$scrollElement = $(element).is('body') ? $(window) : $(element)
     this.options        = $.extend({}, ScrollSpy.DEFAULTS, options)
-    this.selector       = (this.options.target
-      || ((href = $(element).attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7
-      || '') + ' .nav li > a'
-    this.offsets        = $([])
-    this.targets        = $([])
+    this.selector       = (this.options.target || '') + ' .nav li > a'
+    this.offsets        = []
+    this.targets        = []
     this.activeTarget   = null
 
+    this.$scrollElement.on('scroll.bs.scrollspy', process)
     this.refresh()
     this.process()
   }
@@ -1701,10 +1702,17 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
   }
 
   ScrollSpy.prototype.refresh = function () {
-    var offsetMethod = this.$element[0] == window ? 'offset' : 'position'
+    var offsetMethod = 'offset'
+    var offsetBase   = 0
+
+    if (!$.isWindow(this.$scrollElement[0])) {
+      offsetMethod = 'position'
+      offsetBase   = this.$scrollElement.scrollTop()
+    }
+
+    this.offsets = []
+    this.targets = []
 
-    this.offsets = $([])
-    this.targets = $([])
     var self     = this
 
     this.$body
@@ -1718,7 +1726,7 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
         return ($href
           && $href.length
           && $href.is(':visible')
-          && [[$href[offsetMethod]().top + (!$.isWindow(self.$scrollElement.get(0)) && self.$scrollElement.scrollTop()), href]]) || null
+          && [[$href[offsetMethod]().top + offsetBase, href]]) || null
       })
       .sort(function (a, b) { return a[0] - b[0] })
       .each(function () {
@@ -1737,7 +1745,7 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
     var i
 
     if (scrollTop >= maxScroll) {
-      return activeTarget != (i = targets.last()[0]) && this.activate(i)
+      return activeTarget != (i = targets[targets.length - 1]) && this.activate(i)
     }
 
     if (activeTarget && scrollTop <= offsets[0]) {

docs/examples/tooltip-viewport/tooltip-viewport.css

@@ -14,8 +14,8 @@ body {
 .container-viewport {
   position: absolute;
   top: 100px;
-  left: 250px;
   right: 250px;
+  left: 250px;
   height: 300px;
   background-color: #eee;
 }